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2,507
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texts 2,507
COLLECTION
TOPIC
Geology 217
Mines and mineral resources 72
Petroleum 70
Oil wells 65
Geology, Stratigraphic 64
Gas wells 61
Coal 59
Agriculture 43
Insect pests 43
Coal mines and mining 40
Illinois State Geological Survey 40
Natural history 40
Groundwater 35
Architects 34
Architecture 34
Archives 34
Bees 34
Building 34
Insecticides 34
Lincoln, Abraham, 1809-1865 33
Insurance 32
Water-supply 31
Dairy farming 30
Dairy farms 30
Illinois State Dairymen's Association 30
Water quality 29
Mineral industries 28
Universities and colleges 28
Education 27
Bills, Legislative 24
Illinois -- History Periodicals 23
Illinois State Historical Society 23
Independent Order of Odd Fellows. Grand Lodge of Illinois 23
Public welfare -- Illinois 23
Finance, Public 22
Land use 21
Oil fields 21
Hazardous wastes 20
Natural gas 20
Oil field flooding 19
Environmental impact analysis 18
Pests 18
Secondary recovery of oil 18
Grants-in-aid 17
Hydrogeology 17
Intergovernmental fiscal relations 17
Iowa State University 17
Life insurance 17
Religious education 17
Petroleum industry and trade 16
Water 16
College catalogs 15
Field crops 15
Theses 15
Women 15
Clay 14
Industrial Institute and College of Mississippi 14
Statistics 14
Environmental protection 13
Geology, Structural 13
Glacial epoch 13
Mine subsidences 13
Women's colleges 13
Illinois -- Maps 12
Illinois -- Surveys 12
Illinois Humane Society 12
Land titles -- Registration and transfer Illinois 12
Surveying -- Illinois 12
Water resources development 12
Animal welfare -- Illinois 11
Dentistry 11
Fisheries 11
Greenhouse plants 11
Pollution 11
Illinois Wesleyan University 10
Limestone 10
Memorial Day 10
Pollution prevention 10
Vegetable gardening 10
Day care centers 9
Dental laws and legislation 9
Dentists 9
Ecology 9
Engineering geology 9
Fishes 9
Illinois -- History 9
Illinois Central Railroad Company 9
Illinois State Normal University 9
Illinois. Hazardous Waste Research and Information Center 9
Natural resources surveys 9
Soldiers 9
Superconducting Super Collider 9
Hazardous substances 8
ITALY 8
Illinois College 8
Livestock 8
Man 8
STATISTICS 8
Sanitary landfills 8
Sociaal-economische situatie 8
Environmental monitoring 7
Geochemistry 7
Illinois State University 7
Illinois State University (Normal) 7
Iowa State Agricultural College Farm 7
Iowa State College 7
Mineralogy 7
Paleobotany 7
Pesticides 7
Snow surveys 7
Surveying 7
Waste disposal in the ground 7
American newspapers 6
Baptists 6
Bible 6
Charter schools 6
Coal trade 6
Debts, Public 6
Ecosystem management 6
Geological mapping 6
Geological surveys 6
Hazardous waste sites 6
Illinois 6
Illinois -- Description and travel 6
Illinois Baptist State Convention 6
Illinois State Sunday School Convention 6
Illinois. Waste Management and Research Center 6
Indiana State Normal School 6
Legislation -- Illinois Periodicals 6
Local government 6
Petrology 6
Railroads -- Illinois 6
Sediments (Geology) 6
Source reduction (Waste management) 6
Subsidences (Earth movements) 6
Sunday school conventions 6
Air 5
Beneficial insects 5
Borings 5
Catholic Church 5
Child care services 5
Church of England 5
Coke 5
College students 5
Darters (Fishes) 5
Emblems 5
Employer-supported day care 5
Geomagnetism 5
Hydrology 5
Indiana. Dept. of Statistics and Geology 5
Insects 5
Labor unions 5
Merchant mariners 5
Natural resources 5
Newspaper editors 5
Newspaper publishing 5
Paleontology 5
Petroleum engineering 5
Physicians 5
Political science 5
Shale 5
Shore protection 5
Teachers colleges 5
Transportation 5
Water quality management 5
Wetland ecology 5
Air quality 4
Algorithms 4
Aquifers 4
Beach erosion 4
Bengal (India) 4
Char 4
Charities -- Illinois 4
Civil rights 4
Coal mine waste 4
Coal washing 4
College teachers 4
Colleges and universities 4
Conservation of natural resources 4
Corn 4
Dolomite 4
Earth resistance 4
Educational law and legislation 4
Engineering 4
Environmental responsibility 4
Faults (Geology) 4
Fishing 4
Gravel 4
Illinois -- Biography 4
Illinois Coal Development Board 4
Illinois Woman's College (Jacksonville) 4
Illinois. Office of Coal Development and Marketing 4
Indians of North America 4
Inger, Robert F 4
Iowa Wesleyan College 4
Natural areas 4
Natural resources conservation areas 4
Parks -- Illinois 4
Plants 4
Prospecting 4
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